Evan and/or Tee, in the listing it shows under "Uses" it is a vegetable. Is this something either of you have eaten? If so, leaves or rhizomes?

Shoe (curiouser and curiouser.)

Here is an answer to an old question...
The emerging early spring growth (fuki no to, or butterbur buds) are eaten, the stems are eaten, the leaves are eaten.
Cooking is required...it tastes bitter. Some people like a bitter taste. Preparing by blanching/chilling then soaking will remove some of the bitterness.